2 Corinthians 1:11

being assisted by your prayers for me, so that thanks may be returned by many, for the gracious deliverance procur'd me by their prayers.

Philippians 1:19

for I know that this shall turn to my deliverance, thro' your prayers, by the spirit, which Jesus Christ will supply me with,

2 Corinthians 4:15

for all things are for your sakes, that the grace which was conferr'd upon many, might by the gratitude of so many, redound to the glory of God.

Acts 12:5

thus Peter was kept in prison, but the Church prayed to God, without ceasing, for him,

2 Corinthians 9:11-12

so that being enriched in every thing, you may be continually beneficent to the glory of God by our thanksgiving.

Romans 15:30-32

in the mean time, I conjure you, brethren, by our Lord Jesus Christ, and by the love of the spirit, that you join with me in earnest prayers to God for me;

2 Corinthians 9:14

and you will have the advantage of their earnest prayers, for the exceeding favour God has bestowed upon them by you:

Ephesians 6:18-19

Pour out your souls unto God upon all occasions, watching in prayer with all perseverance and supplication for all christians:

Colossians 4:3

put up your requests likewise for me, that God would give me an opportunity to declare the mystery of Christ (for which I am even in bonds:)

1 Thessalonians 5:25

My brethren, pray for us.

2 Thessalonians 3:1

To conclude, pray for us, my brethren, that the doctrine of the Lord may make its progress, and be respected every where as it is among you:

Hebrews 13:18

Pray for us, for we trust we have a clear conscience, and desire our virtuous conduct may appear to all the world.

James 5:16-18

confess then to one another the offences you have committed, and pray for one another, that you may be healed; the fervent prayer of a virtuous man has great influence.

Treasury of Scripture Knowledge

Summary

Ye also helping together by prayer for us, that for the gift bestowed upon us by the means of many persons thanks may be given by many on our behalf.

Bible References

Helping

2 Corinthians 9:14
and you will have the advantage of their earnest prayers, for the exceeding favour God has bestowed upon them by you:
Acts 12:5
thus Peter was kept in prison, but the Church prayed to God, without ceasing, for him,
Romans 15:30
in the mean time, I conjure you, brethren, by our Lord Jesus Christ, and by the love of the spirit, that you join with me in earnest prayers to God for me;
Ephesians 6:18
Pour out your souls unto God upon all occasions, watching in prayer with all perseverance and supplication for all christians:
Philippians 1:19
for I know that this shall turn to my deliverance, thro' your prayers, by the spirit, which Jesus Christ will supply me with,
Colossians 4:3
put up your requests likewise for me, that God would give me an opportunity to declare the mystery of Christ (for which I am even in bonds:)
1 Thessalonians 5:25
My brethren, pray for us.
2 Thessalonians 3:1
To conclude, pray for us, my brethren, that the doctrine of the Lord may make its progress, and be respected every where as it is among you:
Philemon 1:22
pray at the same time prepare me a lodging: for I trust that through your prayers I shall be restored to you.
Hebrews 13:18
Pray for us, for we trust we have a clear conscience, and desire our virtuous conduct may appear to all the world.
James 5:16
confess then to one another the offences you have committed, and pray for one another, that you may be healed; the fervent prayer of a virtuous man has great influence.

General references

1 Corinthians 12:22
nay, those parts of the body, which seem to be of the least account, are much more necessary.
1 Thessalonians 5:25
My brethren, pray for us.